Speed of light in air is 3*10^8 m/s and speed of light in common glass is 2*10^8 m/s.Calculate the refractive index of glass.

Answer:

Glass refractive index is defined as the ratio between the speed of light in the vacuum and the speed of light in the glass.

Refractive index of glass (ng) = Speed of light in vacuum/speed of light in the glass.

ng = (3 ×108)/ (2 ×108)

ng = 1.5

1 Comment

  1. Sadhana sopan ujalambe

    Thanks sir

Leave a Comment

Your email address will not be published. Required fields are marked *

BOOK

Free Class